package com.ly.wxstore.comm;

import java.text.SimpleDateFormat;

/**
 * 
Letter 

Date or Time Component 

Presentation 

Examples 

G  Era designator  Text  AD  
y  Year  Year  1996; 96  
Y  Week year  Year  2009; 09  
M  Month in year (context sensitive)  Month  July; Jul; 07  
L  Month in year (standalone form)  Month  July; Jul; 07  
w  Week in year  Number  27  
W  Week in month  Number  2  
D  Day in year  Number  189  
d  Day in month  Number  10  
F  Day of week in month  Number  2  
E  Day name in week  Text  Tuesday; Tue  
u  Day number of week (1 = Monday, ..., 7 = Sunday)  Number  1  
a  Am/pm marker  Text  PM  
H  Hour in day (0-23)  Number  0  
k  Hour in day (1-24)  Number  24  
K  Hour in am/pm (0-11)  Number  0  
h  Hour in am/pm (1-12)  Number  12  
m  Minute in hour  Number  30  
s  Second in minute  Number  55  
S  Millisecond  Number  978  
z  Time zone  General time zone  Pacific Standard Time; PST; GMT-08:00  
Z  Time zone  RFC 822 time zone  -0800  
X  Time zone  ISO 8601 time zone  -08; -0800; -08:00  

 * @author Administrator
 *
 */
public class DateUtil {

	/**
	 * yyyy-MM-dd hh:mm:ss
	 */
	public static SimpleDateFormat sdf_1 = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");

	/**
	 * yyyyMMddHHmmss
	 */
	public static SimpleDateFormat sdf_2 = new SimpleDateFormat("yyyyMMddHHmmss");

	/**
	 * yyyy-MM-dd
	 */
	public static SimpleDateFormat sdf_3 = new SimpleDateFormat("yyyy-MM-dd");
	
	/**
	 * yyyyMMddhhmmssSSS
	 */
	public static SimpleDateFormat sdf_4 = new SimpleDateFormat("yyyyMMddhhmmssSSS");
	
	public static String getTimeStamp(){
		 Long ts= System.currentTimeMillis();
		 ts =ts/1000;
		 return ts.toString();
	}
	
	public static void main(String[] args) {
		System.out.println(getTimeStamp());
	}

}
